Nine short years ago, Kat Cammack found herself homeless. This was due in large part to the Obama-era “Home Affordable Modification Program,” a now-defunct failed loan program that was designed to help desperate homeowners avoid foreclosure amid the 2008 recession and housing crisis but ended up draining families’ savings. It was an eye-opening experience for her. “When we found ourselves homeless, I realized the impact Washington, D.C., would have on your life without you really knowing,” the 32-year-old told me on the phone. Soon, she’ll be looking for a place to live in Washington as the youngest Republican woman in Congress, representing Florida’s 3rd District. Now, the freshman thinks her homeless-to-Congress story epitomizes the American dream. Cammack has plenty of company. This year has been a historic one for Republican women, who doubled in number in the U.S. House after the election. As of this writing, 36 Republican women will serve in the next Congress, a record. These women are more diverse than you might expect from a GOP that has cultivated a reputation as the party of white males. And they’re a collective example of fascinating firsts. Yvette Herrell, a member of the Cherokee Nation, is the first Republican Native American businesswoman elected to Congress from New Mexico, which is itself the first state to elect all women of color to the U.S. House. Rep.-elect Nancy Mace is a single mother and business owner...